The Higher Powers of Mind and Spirit is a self help classic by Ralph Waldo Trine. We are all dwellers in two kingdoms, the inner kingdom, the kingdom of the mind and spirit, and the outer kingdom, that of the body and the physical universe about us. In the former, the kingdom of the unseen, lie the silent, subtle forces that are continually determining, and with exact precision, the conditions of the latter.To strike the right balance in life is one of the supreme essentials of all successful living.